Can I know the students who access the source view? Meaning, is there a way to know who accessed the source view to see the answers to the quiz?
Can you provide a screenshot of what the "source view" is, and what answers you are talking about?
Moodle Quiz questions are processed on the server with PHP, so the answers are not in the users browser at any point until the are explicitly shown, for example as feedback.
This is in contrast to other systems that are Javascript client side applications where the answers are stored in the browser during a quiz.
This is in contrast to other systems that are Javascript client side applications where the answers are stored in the browser during a quiz.